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Signed-off-by: Joseph Huang --- bridge/mdb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/bridge/mdb.c b/bridge/mdb.c index 196363a5..72490971 100644 --- a/bridge/mdb.c +++ b/bridge/mdb.c @@ -256,6 +256,8 @@ static void print_mdb_entry(FILE *f, int ifindex, const struct br_mdb_entry *e, print_string(PRINT_ANY, NULL, " %s", "added_by_star_ex"); if (e->flags & MDB_FLAGS_BLOCKED) print_string(PRINT_ANY, NULL, " %s", "blocked"); + if (e->flags & MDB_FLAGS_OFFLOAD_FAILED) + print_string(PRINT_ANY, NULL, " %s", "offload_failed"); close_json_array(PRINT_JSON, NULL); if (e->vid) From patchwork Tue Mar 18 22:50:26 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joseph Huang X-Patchwork-Id: 14021687 X-Patchwork-Delegate: dsahern@gmail.com Received: from mx0b-000eb902.pphosted.com (mx0b-000eb902.pphosted.com [205.220.177.212]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9E1C5212F98 for ; 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This knob is used to control how the bridge shall notify use space about mdb flag changes: 0 - the bridge will not notify user space about MDB flag change 1 - the bridge will notify user space about flag change if either MDB_PG_FLAGS_OFFLOAD or MDB_PG_FLAGS_OFFLOAD_FAILED has changed 2 - the bridge will notify user space about flag change only if MDB_PG_FLAGS_OFFLOAD_FAILED has changed The default value is 0. Signed-off-by: Joseph Huang --- ip/iplink_bridge.c | 15 +++++++++++++++ man/man8/ip-link.8.in | 19 +++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/ip/iplink_bridge.c b/ip/iplink_bridge.c index 1fe89551..fd8f2669 100644 --- a/ip/iplink_bridge.c +++ b/ip/iplink_bridge.c @@ -62,6 +62,7 @@ static void print_explain(FILE *f) " [ nf_call_iptables NF_CALL_IPTABLES ]\n" " [ nf_call_ip6tables NF_CALL_IP6TABLES ]\n" " [ nf_call_arptables NF_CALL_ARPTABLES ]\n" + " [ mdb_notify_on_flag_change NOTIFY_ON_FLAG_CHANGE ]\n" "\n" "Where: VLAN_PROTOCOL := { 802.1Q | 802.1ad }\n" ); @@ -413,6 +414,14 @@ static int bridge_parse_opt(struct link_util *lu, int argc, char **argv, addattr8(n, 1024, IFLA_BR_NF_CALL_ARPTABLES, nf_call_arpt); + } else if (matches(*argv, "mdb_notify_on_flag_change") == 0) { + __u8 mdb_notify_on_flag_change; + + NEXT_ARG(); + if (get_u8(&mdb_notify_on_flag_change, *argv, 0)) + invarg("invalid mdb_notify_on_flag_change", *argv); + addattr8(n, 1024, IFLA_BR_MDB_NOTIFY_ON_FLAG_CHANGE, + mdb_notify_on_flag_change); } else if (matches(*argv, "help") == 0) { explain(); return -1; @@ -815,6 +824,12 @@ static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) "nf_call_arptables", "nf_call_arptables %u ", rta_getattr_u8(tb[IFLA_BR_NF_CALL_ARPTABLES])); + + if (tb[IFLA_BR_MDB_NOTIFY_ON_FLAG_CHANGE]) + print_uint(PRINT_ANY, + "mdb_notify_on_flag_change", + "mdb_notify_on_flag_change %u ", + rta_getattr_u8(tb[IFLA_BR_MDB_NOTIFY_ON_FLAG_CHANGE])); } static void bridge_print_help(struct link_util *lu, int argc, char **argv, diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in index efb62481..2f8bc354 100644 --- a/man/man8/ip-link.8.in +++ b/man/man8/ip-link.8.in @@ -1753,6 +1753,8 @@ the following additional arguments are supported: .BI nf_call_ip6tables " NF_CALL_IP6TABLES " ] [ .BI nf_call_arptables " NF_CALL_ARPTABLES " +] [ +.BI mdb_notify_on_flag_change " MDB_NOTIFY_ON_FLAG_CHANGE " ] .in +8 @@ -1977,6 +1979,23 @@ or disable .RI ( NF_CALL_ARPTABLES " == 0) " arptables hooks on the bridge. +.BI mdb_notify_on_flag_change " MDB_NOTIFY_ON_FLAG_CHANGE " +- set how the bridge notifies user space about MDB flag changes. +.I MDB_NOTIFY_ON_FLAG_CHANGE +is an integer value having the following meaning: +.in +8 +.sp +.B 0 +- do not notify user space about MDB flag change + +.B 1 +- notify user space if either offload flag or offload failed flag +has changed + +.B 2 +- notify user space only if offload failed flag has changed +.in -8 + .in -8